nly through me can you achieve a power greater than any Jedi. Learn to know the Dark Side of the Force and you will be able to save your wife from certain death."

"You have much wisdom, Anakin. But if I were to die, all the knowledge you seek about the true nature of the Force will be lost with me. Learn the power of the Dark Side, Anakin. The power to save Padmé."

"You were the chosen one! You said you were to destory the sith not join them! Bring balance to the force not leave it in darkness!"
"I hate you!"
"You were my brother Anakin I loved you."

"Do you hear that?" "Yeah." "That is the sound of a thousand terrible things headed this way." "If they find us, they will crush us, grind us into TINY pieces and BLAST us into oblivion!" "Hmmm... yousa point is well seen."

Yoda: "Attachment leads to jealousy. The shadow of greed that is." & "Train yourself to let go of everything you fear to loose."

I love this for the following reasons.
Ironically, these two quotes contain the reason for Jedi's failure and later, the redemption of Vader. Anakin never trained himself to let go of the things he loved, which eventually led to his downfall in RotS. But attachment to his son makes him turn back and destroy the Sith.

I think you can boil the PT thematically down to three quotes from "Sith", all from the three leads, "I have failed you, Anakin. I have failed you." "I hate you!" and "This is how liberty dies, with thunderous applause."